The following day the target was rail yards at Sofia, Bulgaria. Thirty aircraft dropped bombs on the target causing damage to many freight cars. The Tuskegee Airmen had replaced their P47s with P51s and provided escort to the target. Three aircraft were damaged by anti aircraft fire. These missions all required getting up around 4am, flying 8-10 hours on oxygen, fighting off enemy fighters, encountering intense anti aircraft flak and enduring debriefing by intelligence officers upon return.